Moreschi was the late 19th century’s most famous castrato—a male singer who undergoes castration before puberty and, as a result, retains a soprano or alto voice that becomes extraordinarily powerful as he develops the lung capacity and physical bulk of an adult. He was first soprano in the Sistine Chapel choir for 30 years and was the only castrato of the bel canto tradition to make solo sound recordings. What do modern music critics say about the singing featured in these recordings? Discuss